mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/VisualEditor
synced 2024-09-24 10:48:42 +00:00
528 lines
16 KiB
PHP
528 lines
16 KiB
PHP
<?php
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/**
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* Parsoid/RESTBase+MediaWiki API wrapper.
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*
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* @file
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* @ingroup Extensions
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* @copyright 2011-2018 VisualEditor Team and others; see AUTHORS.txt
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* @license MIT
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*/
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use \MediaWiki\Logger\LoggerFactory;
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use MediaWiki\MediaWikiServices;
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class ApiVisualEditorEdit extends ApiVisualEditor {
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/**
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* @inheritDoc
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*/
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public function __construct( ApiMain $main, $name, Config $config ) {
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parent::__construct( $main, $name, $config );
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}
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/**
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* Attempt to save a given page's wikitext to MediaWiki's storage layer via its API
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*
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* @param Title $title The title of the page to write
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* @param string $wikitext The wikitext to write
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* @param array $params The edit parameters
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* @return Status The result of the save attempt
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*/
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protected function saveWikitext( Title $title, $wikitext, $params ) {
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$apiParams = [
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'action' => 'edit',
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'title' => $title->getPrefixedDBkey(),
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'text' => $wikitext,
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'summary' => $params['summary'],
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'basetimestamp' => $params['basetimestamp'],
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'starttimestamp' => $params['starttimestamp'],
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'token' => $params['token'],
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'errorformat' => 'html',
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];
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if ( $params['minor'] ) {
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$apiParams['minor'] = true;
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} else {
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$apiParams['notminor'] = true;
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}
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// FIXME add some way that the user's preferences can be respected
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$apiParams['watchlist'] = $params['watch'] ? 'watch' : 'unwatch';
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if ( $params['captchaid'] ) {
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$apiParams['captchaid'] = $params['captchaid'];
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}
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if ( $params['captchaword'] ) {
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$apiParams['captchaword'] = $params['captchaword'];
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}
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$api = new ApiMain(
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new DerivativeRequest(
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$this->getRequest(),
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$apiParams + $this->getRequest()->getValues(),
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/* was posted? */ true
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),
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/* enable write? */ true
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);
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$api->execute();
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return $api->getResult()->getResultData();
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}
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/**
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* Load into an array the output of MediaWiki's parser for a given revision
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*
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* @param int $newRevId The revision to load
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* @return array The parsed of the save attempt
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*/
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protected function parseWikitext( $newRevId ) {
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$apiParams = [
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'action' => 'parse',
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'oldid' => $newRevId,
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'prop' => 'text|revid|categorieshtml|displaytitle|modules|jsconfigvars',
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];
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$api = new ApiMain(
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new DerivativeRequest(
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$this->getRequest(),
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$apiParams,
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/* was posted? */ false
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),
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/* enable write? */ true
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);
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$api->execute();
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$result = $api->getResult()->getResultData( null, [
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/* Transform content nodes to '*' */ 'BC' => [],
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/* Add back-compat subelements */ 'Types' => [],
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/* Remove any metadata keys from the links array */ 'Strip' => 'all',
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] );
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$content = isset( $result['parse']['text']['*'] ) ? $result['parse']['text']['*'] : false;
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$categorieshtml = isset( $result['parse']['categorieshtml']['*'] ) ?
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$result['parse']['categorieshtml']['*'] : false;
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$links = isset( $result['parse']['links'] ) ? $result['parse']['links'] : [];
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$revision = Revision::newFromId( $result['parse']['revid'] );
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$timestamp = $revision ? $revision->getTimestamp() : wfTimestampNow();
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$displaytitle = isset( $result['parse']['displaytitle'] ) ?
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$result['parse']['displaytitle'] : false;
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$modules = array_merge(
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isset( $result['parse']['modulescripts'] ) ? $result['parse']['modulescripts'] : [],
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isset( $result['parse']['modules'] ) ? $result['parse']['modules'] : [],
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isset( $result['parse']['modulestyles'] ) ? $result['parse']['modulestyles'] : []
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);
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$jsconfigvars = isset( $result['parse']['jsconfigvars'] ) ?
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$result['parse']['jsconfigvars'] : [];
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if ( $content === false || ( strlen( $content ) && $revision === null ) ) {
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return false;
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}
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if ( $displaytitle !== false ) {
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// Escape entities as in OutputPage::setPageTitle()
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$displaytitle = Sanitizer::normalizeCharReferences(
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Sanitizer::removeHTMLtags( $displaytitle ) );
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}
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return [
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'content' => $content,
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'categorieshtml' => $categorieshtml,
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'basetimestamp' => $timestamp,
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'starttimestamp' => wfTimestampNow(),
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'displayTitleHtml' => $displaytitle,
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'modules' => $modules,
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'jsconfigvars' => $jsconfigvars
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];
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}
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/**
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* Create and load the parsed wikitext of an edit, or from the serialisation cache if available.
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*
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* @param Title $title The title of the page
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* @param array $params The edit parameters
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* @param array $parserParams The parser parameters
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* @return string The wikitext of the edit
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*/
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protected function getWikitext( Title $title, $params, $parserParams ) {
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if ( $params['cachekey'] !== null ) {
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$wikitext = $this->trySerializationCache( $params['cachekey'] );
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if ( !is_string( $wikitext ) ) {
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$this->dieWithError( 'apierror-visualeditor-badcachekey', 'badcachekey' );
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}
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} else {
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$wikitext = $this->getWikitextNoCache( $title, $params, $parserParams );
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}
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return $wikitext;
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}
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/**
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* Create and load the parsed wikitext of an edit, ignoring the serialisation cache.
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*
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* @param Title $title The title of the page
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* @param array $params The edit parameters
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* @param array $parserParams The parser parameters
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* @return string The wikitext of the edit
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*/
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protected function getWikitextNoCache( Title $title, $params, $parserParams ) {
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$this->requireOnlyOneParameter( $params, 'html' );
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if ( EasyDeflate::isDeflated( $params['html'] ) ) {
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$status = EasyDeflate::inflate( $params['html'] );
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if ( !$status->isGood() ) {
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$this->dieWithError( 'easydeflate-invaliddeflate', 'invaliddeflate' );
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}
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$html = $status->getValue();
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} else {
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$html = $params['html'];
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}
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$wikitext = $this->postHTML(
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$title, $html, $parserParams, $params['etag']
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);
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if ( $wikitext === false ) {
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$this->dieWithError( 'apierror-visualeditor-docserver', 'docserver' );
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}
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return $wikitext;
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}
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/**
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* Load the parsed wikitext of an edit into the serialisation cache.
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*
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* @param Title $title The title of the page
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* @param string $wikitext The wikitext of the edit
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* @return string The key of the wikitext in the serialisation cache
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*/
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protected function storeInSerializationCache( Title $title, $wikitext ) {
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global $wgMemc;
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if ( $wikitext === false ) {
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return false;
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}
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// Store the corresponding wikitext, referenceable by a new key
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$hash = md5( $wikitext );
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$key = $wgMemc->makeKey( 'visualeditor', 'serialization', $hash );
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$wgMemc->set( $key, $wikitext,
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$this->veConfig->get( 'VisualEditorSerializationCacheTimeout' ) );
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// Also parse and prepare the edit in case it might be saved later
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$page = WikiPage::factory( $title );
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$content = ContentHandler::makeContent( $wikitext, $title, CONTENT_MODEL_WIKITEXT );
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$status = ApiStashEdit::parseAndStash( $page, $content, $this->getUser(), '' );
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if ( $status === ApiStashEdit::ERROR_NONE ) {
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$logger = LoggerFactory::getInstance( 'StashEdit' );
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$logger->debug( "Cached parser output for VE content key '$key'." );
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}
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MediaWikiServices::getInstance()->getStatsdDataFactory()->increment(
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"editstash.ve_cache_stores.$status"
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);
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return $hash;
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}
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/**
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* Load some parsed wikitext of an edit from the serialisation cache.
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*
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* @param string $hash The key of the wikitext in the serialisation cache
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* @return string|null The wikitext
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*/
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protected function trySerializationCache( $hash ) {
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global $wgMemc;
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$key = $wgMemc->makeKey( 'visualeditor', 'serialization', $hash );
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return $wgMemc->get( $key );
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}
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/**
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* Transform HTML to wikitext via Parsoid through RESTbase.
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*
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* @param string $path The RESTbase path of the transform endpoint
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* @param Title $title The title of the page
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* @param array $data An array of the HTML and the 'scrub_wikitext' option
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* @param array $parserParams Parsoid parser paramters to pass in
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* @param string $etag The ETag to set in the HTTP request header
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* @return string Body of the RESTbase server's response
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*/
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protected function postData( $path, Title $title, $data, $parserParams, $etag ) {
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$path .= urlencode( $title->getPrefixedDBkey() );
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if ( isset( $parserParams['oldid'] ) && $parserParams['oldid'] ) {
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$path .= '/' . $parserParams['oldid'];
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}
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return $this->requestRestbase(
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$title,
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'POST', $path, $data,
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[ 'If-Match' => $etag ]
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);
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}
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/**
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* Transform HTML to wikitext via Parsoid through RESTbase. Wrapper for ::postData().
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*
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* @param Title $title The title of the page
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* @param string $html The HTML of the page to be transformed
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* @param array $parserParams Parsoid parser paramters to pass in
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* @param string $etag The ETag to set in the HTTP request header
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* @return string Body of the RESTbase server's response
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*/
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protected function postHTML( Title $title, $html, $parserParams, $etag ) {
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return $this->postData(
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'transform/html/to/wikitext/', $title,
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[ 'html' => $html, 'scrub_wikitext' => 1 ], $parserParams, $etag
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);
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}
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/**
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* Calculate the different between the wikitext of an edit and an existing revision.
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*
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* @param Title $title The title of the page
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* @param int $fromId The existing revision of the page to compare with
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* @param string $wikitext The wikitext to compare against
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* @param int|null $section Whether the wikitext refers to a given section or the whole page
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* @return array The comparison, or `[ 'result' => 'nochanges' ]` if there are none
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*/
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protected function diffWikitext( Title $title, $fromId, $wikitext, $section = null ) {
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$apiParams = [
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'action' => 'compare',
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'prop' => 'diff',
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'fromtitle' => $title->getPrefixedDBkey(),
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'fromrev' => $fromId,
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'fromsection' => $section,
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'totext' => $this->pstWikitext( $title, $wikitext )
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];
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$api = new ApiMain(
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new DerivativeRequest(
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$this->getRequest(),
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$apiParams,
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/* was posted? */ false
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),
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/* enable write? */ false
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);
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$api->execute();
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$result = $api->getResult()->getResultData( null, [
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/* Transform content nodes to '*' */ 'BC' => [],
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/* Add back-compat subelements */ 'Types' => [],
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] );
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if ( !isset( $result['compare']['*'] ) ) {
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return [ 'result' => 'fail' ];
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}
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$diffRows = $result['compare']['*'];
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if ( $diffRows !== '' ) {
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$context = new DerivativeContext( $this->getContext() );
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$context->setTitle( $title );
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$engine = new DifferenceEngine( $context );
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return [
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'result' => 'success',
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'diff' => $engine->addHeader(
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$diffRows,
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$context->msg( 'currentrev' )->parse(),
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$context->msg( 'yourtext' )->parse()
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)
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];
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} else {
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return [ 'result' => 'nochanges' ];
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}
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}
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/**
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* @inheritDoc
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*/
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public function execute() {
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$this->serviceClient->mount( '/restbase/', $this->getVRSObject() );
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$user = $this->getUser();
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$params = $this->extractRequestParams();
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$title = Title::newFromText( $params['page'] );
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if ( !$title ) {
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$this->dieWithError( [ 'apierror-invalidtitle', wfEscapeWikiText( $params['page'] ) ] );
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}
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$parserParams = [];
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if ( isset( $params['oldid'] ) ) {
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$parserParams['oldid'] = $params['oldid'];
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}
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if ( isset( $params['wikitext'] ) ) {
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$wikitext = $params['wikitext'];
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} else {
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$wikitext = $this->getWikitext( $title, $params, $parserParams );
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}
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if ( $params['paction'] === 'serialize' ) {
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$result = [ 'result' => 'success', 'content' => $wikitext ];
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} elseif ( $params['paction'] === 'serializeforcache' ) {
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$key = $this->storeInSerializationCache(
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$title,
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$wikitext
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);
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$result = [ 'result' => 'success', 'cachekey' => $key ];
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} elseif ( $params['paction'] === 'diff' ) {
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$section = isset( $params['section'] ) ? $params['section'] : null;
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$diff = $this->diffWikitext( $title, $params['oldid'], $wikitext, $section );
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if ( $diff['result'] === 'fail' ) {
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$this->dieWithError( 'apierror-visualeditor-difffailed', 'difffailed' );
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}
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$result = $diff;
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} elseif ( $params['paction'] === 'save' ) {
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$saveresult = $this->saveWikitext( $title, $wikitext, $params );
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$editStatus = $saveresult['edit']['result'];
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// Error
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if ( $editStatus !== 'Success' ) {
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$result = [
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'result' => 'error',
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'edit' => $saveresult['edit']
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];
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if ( isset( $saveresult['edit']['spamblacklist'] ) ) {
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$matches = explode( '|', $saveresult['edit']['spamblacklist'] );
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$matcheslist = $this->getLanguage()->listToText( $matches );
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$result['edit']['sberrorparsed'] = $this->msg( 'spamprotectiontext' )->parse() . ' ' .
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$this->msg( 'spamprotectionmatch', $matcheslist )->parse();
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}
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// Success
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} else {
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if ( isset( $saveresult['edit']['newrevid'] ) ) {
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$newRevId = intval( $saveresult['edit']['newrevid'] );
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if ( $this->veConfig->get( 'VisualEditorUseChangeTagging' ) ) {
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// Defer till after the RC row is inserted
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// @TODO: doEditContent should let callers specify desired tags
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$tag = $params['wikitext'] ? 'visualeditor-wikitext' : 'visualeditor';
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DeferredUpdates::addCallableUpdate( function () use ( $tag, $newRevId ) {
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ChangeTags::addTags( $tag, null, $newRevId, null );
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} );
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}
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} else {
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$newRevId = $title->getLatestRevId();
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}
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// Return result of parseWikitext instead of saveWikitext so that the
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// frontend can update the page rendering without a refresh.
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$result = $this->parseWikitext( $newRevId );
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if ( $result === false ) {
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$this->dieWithError( 'apierror-visualeditor-docserver', 'docserver' );
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}
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$result['isRedirect'] = (string)$title->isRedirect();
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if ( class_exists( 'FlaggablePageView' ) ) {
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$view = FlaggablePageView::singleton();
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$originalRequest = $view->getContext()->getRequest();
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$originalTitle = RequestContext::getMain()->getTitle();
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// Defeat !$this->isPageView( $request ) || $request->getVal( 'oldid' ) check in setPageContent
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$newRequest = new DerivativeRequest(
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$this->getRequest(),
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[
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'diff' => null,
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'oldid' => '',
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'title' => $title->getPrefixedText(),
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'action' => 'view'
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] + $this->getRequest()->getValues()
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);
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$view->getContext()->setRequest( $newRequest );
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RequestContext::getMain()->setTitle( $title );
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// The two parameters here are references but we don't care
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// about what FlaggedRevs does with them.
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$outputDone = null;
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$useParserCache = null;
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$view->setPageContent( $outputDone, $useParserCache );
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$view->displayTag();
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$view->getContext()->setRequest( $originalRequest );
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RequestContext::getMain()->setTitle( $originalTitle );
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}
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$context = new RequestContext;
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$context->setTitle( $title );
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$tempOut = new OutputPage( $context );
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$tempOut->setArticleFlag( true );
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$subpagestr = $this->getSkin()->subPageSubtitle( $tempOut );
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if ( $subpagestr !== '' ) {
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$subpagestr = '<span class="subpages">' . $subpagestr . '</span>';
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}
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$result['contentSub'] = $subpagestr . $this->getOutput()->getSubtitle();
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$lang = $this->getLanguage();
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if ( isset( $saveresult['edit']['newtimestamp'] ) ) {
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$ts = $saveresult['edit']['newtimestamp'];
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$result['lastModified'] = [
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'date' => $lang->userDate( $ts, $user ),
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'time' => $lang->userTime( $ts, $user )
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];
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}
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if ( isset( $saveresult['edit']['newrevid'] ) ) {
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$result['newrevid'] = intval( $saveresult['edit']['newrevid'] );
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}
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$result['result'] = 'success';
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}
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}
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$this->getResult()->addValue( null, $this->getModuleName(), $result );
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}
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/**
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* @inheritDoc
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*/
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public function getAllowedParams() {
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return [
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'paction' => [
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ApiBase::PARAM_REQUIRED => true,
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ApiBase::PARAM_TYPE => [
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'serialize',
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'serializeforcache',
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'diff',
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'save',
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],
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],
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'page' => [
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ApiBase::PARAM_REQUIRED => true,
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],
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'token' => [
|
|
ApiBase::PARAM_REQUIRED => true,
|
|
],
|
|
'wikitext' => null,
|
|
'section' => null,
|
|
'sectiontitle' => null,
|
|
'basetimestamp' => null,
|
|
'starttimestamp' => null,
|
|
'oldid' => null,
|
|
'minor' => null,
|
|
'watch' => null,
|
|
'html' => null,
|
|
'etag' => null,
|
|
'summary' => null,
|
|
'captchaid' => null,
|
|
'captchaword' => null,
|
|
'cachekey' => null,
|
|
];
|
|
}
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
public function needsToken() {
|
|
return 'csrf';
|
|
}
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
public function mustBePosted() {
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
public function isWriteMode() {
|
|
return true;
|
|
}
|
|
}
|